Treating sheet metal.



G. RUSSELL.

V TREATING SHEET METAL.

APPLICATION FILED MARJO, 1911.

Patented 001;. 24, 1911;

2 SHEETSSHEBT 1.

INVENTOR G. RUSSELL.

REATI nrmcuxo '1" KG SHEET METAL.

F FILED EAR. 16 1911.

Patented Oct. 24, 1911' 2 SHEETS-SHEET 2.

nave -r01? t l i i PATENT OFFICE.

GEORGE RUSSELL, F MciKEESPOR'l', PENNSYLVANIA.

TREATING SHEET METAL.

Specification of Letters Patent.

mental 001'. 24, 1911.

Application filed March 10, 1911. Serial No. 613,654.

To all whom it may concern:

lie it known that I. (inonor: Rrsszm. a resident of Mc-Keesport, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Treating b'heet Metal, and do hereby t'teelare the following to be a full, clear, and exact description thereof.

My invention relates to treating sheet metal. and has special reference to an apparatus for the cleaning and. polishingof metal sheets to treat the same preparatory to having a coating applied thereto.

The object of my invention is to provide a cheap, simple and etlieient inaehine for cleaning and polishing sheet meta whieh will he automatic in its operatiomand \\'l1l('ll will enable each sheet as it is fed through the same tohe completely and thoroughly polished on hoth sides of the same to (dear.

and polish the sheet andremove any dust.

T enable. others skilled in the art to whieh my invention appertains to tnnstllltt and use my improved mat-lune for (leaning and poli hing sheet metal. I will tltNl'ilit the same more fully. referring to the aerompanying drawings. in \\'l 'll-.

Figure 1 is a plan view of my improved ma'hine to eleaning and polishing metal "hurts. i ig. 2 is a central erosis-set-tion of the same it the line ll--ll. Fig. 1. Fig. 3 is a diagram view showing the belting for driving the shafts of he apparatu Fig. l is a like view .-l)()\\i!| the -hain drive for the feed roll me 'hani e fig. an elm :1- tion of a port'u-n of ;he :nat'hine, showing th means for rer piarating the polishing l'tzlls lrng tudim-lly.

Like svsnl-t-ls ot' referent-e h rein indi 'ate like part in eat-h M" the tigurc-s of the drawlilifh.

As illu trated in the drawings. repre- Lili5 the machine having the supporting frame 1. upon which is mounted the two front feed rolls 3 in the usual housings 3' on the frame 1, which rolis are in a vertiral line with eat-h other. and in front of and positioned in line with the hite. of such rolls is the table 2. Back-of the rolls 3 are the two polishing rolls l and 4'. which are adapted to he plaeed in a vertical line with eat-h other. and with the lower roll 4 being fixedly mounted in suitahle housings on the frame 1 (not shown). while the upper roll 4' is mounted at the front end of a tilting frame hereinafter deserihed. herehy said roll will he movahle toward and from the roll r. intermediate feed rolls 6. "llit'll are vertit-ally mounted in the housings (3'. and have the guides T and T in front and hack of the same. respectively. Bat-k ot the Hills (3 and guide T are the polishing rolls 8 and S. which are adapted to he [)lttttftl in a vertiealline with eat'h other. and with the lower roll s heing fixedly mounted in suitahle housings on the frame 1 (not shown). while the upper r ll 8' is mounted at the rear end of the tilting frame 5. This f ame .3 is pivotally mounted centrally ofthe :tlll( by a shaft 5 whit-h is supported in the housings 5 in the upwardly extending portion 1 of the frame 1. and is operated by means of a lever .3 set-tired thereto. Bat-k of the rolls 8 and are the two teed rolls 9. whirh are.m ounted in a vertical line and in h usings J on the frame 1. and in the rear of and positionel in line with the bite of said rolls 9 is the delivery tahle The feed rolls 3. 6 and f) are positively driven hy means of the ehaiu drive 10 at one end of the same. sut-h as i shown in l-ig. l and i. which ('ousists of the three rhains t0. eaeh engaging with a.sprtwket-wln-t-l 10" on eat-h f the shafts 3". it" and .l" of the lower olls i. t' and it. 1't. ]7ttli\'0l and eat-h with a similar wheel ll mounted n a driving: haft 11' positioned helow and in line with the rolls 6. whirh is provided with a driving pulley l1". sueh wheels It!" heing of the same dialm'ter and the wheel 11' ln-iiig somewhat larg r in diann-ter than said first named \\'l|tl'l-. diarh pair of sin-h feed r lls 3. ('1 and L are positively geared tog -tln'r hy the gearing 1''. at the other end of the ame. and slit-h rolls are provided with a tlexihle rope wrapping 12' applied i around eaeh of the same to font a Cushion Back of the rolh; l and i" are the two and permit a .'ieldin contact with the sheet to be polished, wh ne the polishing; rolls it,

l, and S are each provided with a suitable flexible wrapping or butting surface 12 around the same.

The polishing roll a positively driven by mean of the drive-belt 1.3, which is .lo-

cated on one aide of the'machine and passes around the puller 13" on the shaft 133" of vaaid roll, while the roll 3 is positively driven i by the hell: H located on the of machine and paasii'ig around the puliey 14' on the aft ll of said roll. The shafts 13" and H are connected with the short drive-shafts 1;") and l in line with the shaft 5 and located respectively on opposite sides of the machine through the belts 15 and 16',

rcepectively. paving round the pulleys 15" and 1t?" on said rhat'ts. 13'. ll". 15 and 16, and these (winters-hairs l5 and 16 are in turn connectedto the shafts: l and 8" of the upper ro .1, 4 and I respectively, by means of the belts 17 passing around the pulley; l? on said shafts. while the shafts l5 and 16 are positively driren by means of the helm 17" passing over the pulleys 17 on said shafts. in this manner all the polishiu rolls -l. 4. R and S are poaitivcly driven and all Suitably belted or connected together to produce a uniform motion in ea h. with the contacting faces of the front polishing rolls 4 and i" revolving in the 5 same direction and in the direction of movei ment of the sheet a being. polished. while.

the real polishing rolls 8 and a" are revolved -in the opposite direction from the rolls. 4i and with their contacting faces revolving against the direction of movenuiut. of saidii sheet shown by dotted lines' in Fig. The polishing rolls 4, 4, S and 8' are adapted to be. reciprocaied during the. polishing: operation through the shafts 13",,

4", l4" and R, IQSPWTllYOl on said rolls d cing each connected by means of a. strap 18 wih levers 19 and 19. said levers licin; pivoted by the rod 19' to a frame 20. with the ends of the straps 1S connecting, the upper roll shafts 4" and 8" being pivotally coin nected at 19" to the tops of Said levers above said rod, and the ends of .-uch straps connecting the lower roll shafts l3" and ll" being pivotally connected to said lever and below said rod, as at 19". These straps 1S .1 are reciprocated upon the pivot rod 19, by 2 means of the strap or chain .50 being; connected to one of said levers and passing over a roller 31, so as to be connected to the? crank dish 22 positioned at any suitable point. and such disk is power-driven through 5 the shaft 22' so that in completing one revolution said disk will act to draw said lovers in -one direction to thereby more the rolls 4, 4', and 8' in the longitudinal direction, while. the spring 23 connected to said lever 19 and to a suitable stationary ner side of th A i point 24 on a. floor 2-! will return said levers in the opposite direction after the tension I onthe strap or chain 20' is removed during l the latter half of the rotation of the said 2 disk. i The thin me al sheets, such as preferably i-v'hat is. known as black iron are taken 1 in the condition as made by the sheet metal l and placed in a suitable cage, so that each 2 of such sheets when in such cage are .-.up- ,ported on their edges and free from conltactwith each other. This cage carrying: I such sheets is then submerged in a pickling E bath, preferably composed of pickcliue and i water. and into which bath a steam line or pipe run to provide heat for such bath. so that after remaining in such bath for a i short period (say 15 minutes) any scale or rust will be removed from such plates or 'sheets by staid bath and then the cage carrying such plates or sheets is removed from such bath. After the sheets have been taken from the pickling bath. ea h sheet is paved between suitable iron rollers similar in shape and size to the rubber rollers on a clothes wringer, then through a leath r Fcraper. which will remove an surplus liquid from the pickling bath from such sheet. and then such sheet is passed through heated rolls to dry such sheet thoroughly. After the sheet has been thus thoroughly dried and it is desired to polish the same. such as by the. machine A. such sheet. as at I a. is laid upon the table 2 and moved forrard between the bite of the positively driven feed-rolls 3, which will feed such sheet forward onto the stationary polishing roll 4 which is being rotated in the direction of the. arrow, while said"polishing roll and all the other polishing rolls revolve at the same rate of speed and much hi gher in comparison with the feed rolls 3 and the other i feed rolls of the machine. The. operator next depresses the levers 5 to bring! the upper polishing roll 4' on the tilting frame 5 into contact. with the metal sheet on the roll 4 to be polished. and this roll 4' is rotating in the direction of the tIHOW'SO that the contacting face is moving in the direcl tion of motion of the sheet to be polished. These rolls 4 and 4' are treated with fine 1 emery (lust, and such sheet in passing ished. The sheet next continues into and 5 between the guides 7 and between the feed E rolls 6. thepass of which is located at a. I somewhat higher plane than the surface of r the polishing rolls 4 and 4', such as is shown in Fig. .2, and the sheet then continues inits 5 forward motion through said rolls 6 and guides 7' at the rear of the same until its rear-end passes from operation position between rolls 4 and 4'. Just before the rear 5 end of the sheet passes from the rolls 4 and i 4' the operator raises the lever 5, which dethe rolls 4 and 4' as will be indicated by the arrows, while in its progress the sheet moves between the bite of the feed roll 9 just before the roll 8 is depressed. so that in the. further and complete polishing of the sheet by said rolls S and S, such rolls will remove any traces of emery remaining on such sheet by the. rolls 4 and 4'. and such sheetis passed from between the rolls 3 upon the table. 2'. These polishing operations on the sheet a may be repeated one or more times as desired. and in a similar manner to that. just described. in order to clean and get the desired polish to such sheet. After the sheet eo'nes between the bite of rolls 4 and t the feed rolls 3 act as hold-back rolls, and after the sheet leaves said polishing rolls 4: and 4' and comes in position between rolls 8 and F4. and the lever 51* is raised to depress roll 8' in contact with the sheetas hereinbeforo described, the teed rolls 9 then act. as hold back rolls. The front polishing rolls 4 and 4'. as will be seen by the arrows, revolve in the same direction as the direction of motion of the sheet. being polished. and the rear polishing rolls 8 and 8 revolve against. the direction of motion of the sheet, which will prevent bending, hooking or buclding of the sheet at the rear end of the same. while the bite of the feed rolls 6 and guide 7 being higher than the top of the roll 8 will enable such sheet to pass over said roll and away from the same. so that it can be caught by the rolls 9 at its frontcnd. and while being held between the rolls 9. the upper roll 8 is lowered and the polishing of the sheet. between said rolls 8 and 8 then takes place. As soon as the sheet. being polished caught: at its front end by the feed rolls 9, the polishing roll 4' is raised and the other polishing roll 8' is dropped onto said sheet by the tilting tram:- 5. While the sheet is being: passed between the two rolls 4 and 4- and between the two rolls and 8. each of said pairs of rolls are being rcciprocated. while the sheet is being operated upon by the some, through the straps 18 being connected to the shafts of such rolls and operated by the levers 19 and 19 connected to said straps and t the chains 20. which are operated by the disks 22. which motion with the motion of the r lis -l and 4' and d and in revolving upon ihc sheetwill lune the cll'ectof doubl poli h ng the. heet. and also give such bal ing or polishing rolls a. uniform bearing on wild sheet. .lftcr the sheet a.

has passed through the cleaning and p lishing machine A it is removed from the table 2' and passed through the rolls of a coat ng machine of any suitable construction, preferably as shown in my application filed August- 5, 1910, Serial No. 511,464, which will atlix or apply a coating of lacquer or enamel. preferably flexible, to both sides of said sheet at one pass through said rolls. After such sheet has been so coated it is placed on a rack, where it. rests upon pointed ends of a bar, such as is shown in my application filed August 5, 1910, Serial No. 511,465, and such racks with coated sheets thereon are piled on a suitable car, so that such car carrying the same can be run into an oven and such sheets subjected to a heatofabout 350 degrees for a period of about 90 minutes.

It. will thus be seen that by any improved machine for polishing metal sheets all liability of the sheet becoming injured by bonding, booking or buckling is overcome. and it is enabled to be polished in a rapid, easy and clean manner, which practical experience has proved, while the thin black iron sheetso cleaned and polished, when the lacquer or enamel coating placed thereon, will present to the eye the appearance of a highly polished coated sheet, and resembling a coated sheet; of tin plate, thereby greatly cheapcning the cost of manufacture of such coated sheets for the purposes intended.

Various modifications and changes in process and in the design and construction of my improved machine for cleaning and polishing metal sheets may be resorted to, without departing from the spirit of the invention or sacrificing any of its ad ant-ages.

\Vhat- I claim as my invention and desire to secure by Letters Patent is- 1. A machine for polishing metal sheets comprising a pair of vertical polishing rolls for engaging with the sheet, and revolving in the direction of its movement, another pair of vertical polishing rolls inthe rear of said rolls for engaging with the sheet and revolving in the opposite irection fronts-aid first named rolls, the top of the lower polishing rolls being below the intermediate feed, and means for feeding the sheet through said rolls.

2. A machine for polishing metal sheets comprising a. pair of vertical polishing rolls for engaging with the sheet and revolving in the direction of its movement, another pair of vertical polishing rolls in the rear of said rolls for engaging with the sheet and revolving in the opposite direction from said first named rolls, with the upper one of said rolls movable for being lowered to engage with the sheet. the. top of the lower polishing rolls being below the intermediate feed. and means for feeding the sheet through said rolls.

3. A machine for polishing metal sheets comprising a pair of vertical polishing rolls for eiiga ing with the sheet and revolving in the t'lil't'llfll'l of its movement, another pair of vertical polishing rolls in the rear 5 of said rolls for engaging with the sheet and revolving in the opposite direction from said first named rolls, with the upper rolls of each of said pairs connected together and nmvahle for being lower d alternately to engra e with the sheet, the top of the lower polishing rolls heing helow the intermediate teeth and means; on the outer side of each of said rolls and between the same for feeding the sheet through said rolls.

4. A machine for polishing metal sheets conn'n'ising a pair of vertical polishing rolls for engaging with the sheet and revolving in the direction of its movement, another pair of vertical polishing rolls in the rear of said rolls for engaging with the sheetand revolving in the opposite direction from said first named rolls, a tilting frame carrying the upper rolls of each of said pairs for lowering: said rolls alternately to engage the sheet. the top of the lower polishing rolls being ltelo the intermediate feed, and means for tot-ding the sheet through said rolls.

A machine for polishing metal sheets comprising a pair of vertical polishing rolls for engaging with the sheet and revolving in the direction of its movement, another air of vertical polishing rolls in the rear of said rolls for engaging with the sheet and revolving in the opposite direction from said first named rolls. and means for feeding the sheet through said rolls, and means for reciprocatingsaid polishing rolls.

6. A machine for polishing metal sheets comprising a pair of vertical polishing rolls for engaging with the sheet and revolving in the direction of its movement, another pair (if-vertical polishing rolls in the rear of said rolls for engaging with the sheet and revolving in the opposite direction from said first named rolls, with the upper one of said rolls movable for being lowered to engage with the. sheet, means for feeding the sheet through said rolls, and means for reciprocating said polishing rolls.

7. A machine for polishing metal sheets comprising a pair of vertical polishing rolls for engagingwith the sheet and revolving in the direction of its -movement, another pair of vertical polishing rolls in the rear '65 of said rolls for engaging with the sheet and revolving in the opposite direction from said first named'rolls, with the upper rolls of each of said' pairs connected together and movable for being lowered alternately to 6G engage'with the sheet, means for feeding the sheet. through said rolls, and means for reciprocating said polishing rolls. t

8. A machine for polishing metal sheets comprising a pair of vertical polishing 5 rolls for engaging with the sheet and revolving in the direction of its movement,

another pair of vertical polishing rolls in the rear of said rolls for engaging with the sheet and revolving in the opposite direction from said first named rolls, a tilting frame carrying the upper rolls of each of said pairs for lowering said rolls alternately to engage the sheet, means for feeding the sheet. through said rolls, and means for re ciprocating said polishing rolls.

9. A machine. or polishing metal sheets comprising a pair of vertical polishing rolls for engaging with the sheet and revolving in the direction of its mov ment, another pair of vertical polishing ro ls in the rear 30 of said rolls for engaging with the sheet and revolving in the opposite direction from said first named rolls, the top of the-lower polishing rolls heing below the intermediate feed, means for feeding the sheet. through 5 said rolls, and means for reciprocating said polishing rolls. i i

10. A machine for polishing metal sheets comprising a pair of vertical polishing rolls tor engagingwith the sheet and revolving in the direction of its movement, another pair of vertical polishing rolls in the rear of said rolls for engaging with the sheet and revolving in the opposite directionfrom said firstnamed rolls. the top of the lower polishing rolls being below the intermediate feed, feed rolls on the outer side of each of said rolls and between the same for feeding the sheetthrough said rolls, and means for reciproeatingsaid polishing rolls. 7 10 0 11. A machine for polishing metal sheets comprising a pair of vertical polishing rolls for engaging with the sheet and revolving in the direction of its movement, another pair of vertical polishing rolls in the rear of said rollsfor engaging with the sheet and revolving in the opposite direction from said first named rolls, with the upper one of said rolls movable for being lowered t0 age with the sheet the top ofthe lower poli. air-g rolls being liElOW' the intern'iediate feethmeans on the outer side of each of said rolls and between the same for feeding the sheet through said rolls, and means for reciprocating said polishing rolls.

12. i l-machine for polishing meta-l sheets comprising a pair of vertical polishing rolls for engaging with the sheet and revolving in the direction of its movement, another pair of vertical polishing rolls in the rear of said rolls for engaging with the sheet and revolving in the opposite direction from said first named rolls. with the upper rolls of each of said pairs connected together and movable for being lowered alternately toengage with the sheet. the top of the lower polishing rolls being lselow the intermediate feed means for feeding the sheet through said rolls, and means for reciprocating said polishing rolls.

13. A machine for polishing metal sheets comprising a pair of vertical polishing rolls for engaging with the sheet and revolving in the direction of its movement, another pair of vertical polishing rolls in the rear of the sheet, the tQp of the lower polishing rolls being belew the intermediate feed, means for feeding the sheet through said rolls, and means for reciprocating said p0l .ishing rolls. 15

In testimony whereof, I, the said GEORGE v RUSSELL, have hereunto set my hand.

GEORGE RUSSELL.

\Vitnesses:

T. B. HUMPHRIEB, J. N. 000m). 

